//
//  ViewController.h
//  计算器
//
//  Created by 宋 on 16/3/1.
//  Copyright © 2016年 宋. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

@property(nonatomic,weak)IBOutlet UITextField *textfield1;
@property(nonatomic,weak)IBOutlet UITextField *textfield2;

@property(nonatomic,weak)IBOutlet UILabel *res;

@property(nonatomic,weak)IBOutlet UILabel *yun;

//按钮响应对象
- (IBAction)method;

- (IBAction)method1;

- (IBAction)method2;

- (IBAction)method3;

- (IBAction)method4;

@end

